Brake-beam and attachment.



Nu. 7|2,a54. Patented Nov. 4. I902.

G. B. F. COOPER. BRAKE BEAM AND ATTACHMENT??- {Ayplication filed Apr.24, 190:3.

(No Model.) 2 Sheets-Sheet I.

3 maeutoz I l v'whwoom m: NORRlS PEYERS coy, Pnovaumm msmuomu. b. c

No. 70,654. Patented Nov. 4,1902.

'6. B. F.COOPER.

BRAKE BEAM AND ATTACHMENT;

(Application filed Apr. 24, 1902a (No Model.) 2 Sheets-Sheet z. n

UNITED STATES GEORGE B. F. COOPER, or DETROIT, MICHIGAN.

BRAKE-BEAM AND ATTACHM ENT.

srEcmroA'rIoN forming part of Letters Patent No. 712,654, dated November4, 1902.

Application filed April 24, 1902. Serial No. 104,499. (No model.) V

To all whom it may concern:

Be it known that I, GEORGE E. F. COOPER,

a citizen of the United States, residing at Detroit, in the county ofWayne and State of Michigan, have invented certain new and usefulImprovements in -Brake-Beams and Attachmen ts; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the figures of reference marked thereon,which form a part of this specification.

This invention relates to brake-beams, particularly. those used onrailroad-cars.

The object of the invention is to improve the construction of. the beam,the beam-fulcrum, the wheel-guard, and the safety-chain eye.

A further object is to form a beam on which the brake-heads can bereversed or clamped to either edge of the beam.

A further object is to provide improved means for clamping together theparts of a two-part fulcrum.

A further object of the invention is to utilize the idea of forming thewheel-guard and safety-chain eye in one piece with new and improvedmeans for attaching the same to the beam.

A further objectis to more securely join the f ulcrum-pieces and thewheel-guard piece to the beam by casting rivets integral with saidpieces adapted to be spread or hammered down to join the pieces to thebeam.

With these and other objects in view the invention is hereinafterdescribed,and is illustrated in the accompanying drawings, in which-Figure 1 is a plan view of the beam. Fig. 2 is a detail face view of thefulcrum, showing the position of the parts before the tenons arehammered down to clamp the parts together. Fig. 3 is a front view of thefulcrum with the parts separated. Fig. 4 is a side view of the fulcrum,showing the beam in section. Figs. 5 and 6 are front and side views,respectively, of a modification of the fulcrum in which the tenons runhorizontally. Figs. 7 and 8 are respectively side and top views of thewheel-guard and safety-chain eye.

The construction of the fulcrum embraces the idea of joining two partsby dovetail tenons, which are preferably made to extend through mortisesadjacent the face of the brake-beam and are then upset and hammered downover the edges of the flanges of the brake-beam, so that the parts aresecurely joined.

In the drawings, 6 indicates the brake-beam, which may be either rolled,pressed, or cast. This is formed in the shape of an I-beam, one edge ofwhich is straight and the other edge of which is curved or has the formof 21. segment, as at (i except at the ends of the beam, where it isformed parallel with the opposite edge, as at 6", for a space sufficientto permit the brake heads to be driven onto either flange. This permitsthe brake-heads to be reversed or changed to either side of the beamwithout a change of pattern.

are properly shaped to embrace one flange and, a portion of the web ofthe beam. At the rear of one of .the fulcrum parts a rivet '7 is formedintegral therewith and is preferably hollow, so that it may be readilyspread when inserted through holes in the web of the beam and the otherpart of the fulcrum. Ears 8 project from the front of thefulcrum-piecesfor the attachment of the brake-lever and are inclined, as usual. At thefront the fulcrum parts are scar-fed with a bevel, as at 9, extendingbetweenand parallel to the ears 8 and butts, as at 10. Immediately inthe rear thereof and next to the face of the beam tenons 11 are formedon each part, extending through corresponding mortises in the otherpart. A convenient form of construction is that shown in Figs. 2 and 3,in which two tenons are formed on one part and one on the other. Thesetenons are formedof sufficient length to extend beyond the part throughwhich they pass, so that they project when the parts are joined, andarethen hammered down over the edge of the beam-flange to clench theparts together. As above indicated, the sides of the tenons and mortisesare respectively spread and undercut, so that a dovetail joint isformed.

In the embodiment above described the tenons extend vertically; but themodification shown in Figs. 5 and 6 has horizontal The fulcrum is formedof two parts 7, which tenons which hold together the parts of thefulcrum, but which are not capable of being clamped over the edges ofthe flanges of the beam as the vertical ones are.

The wheel-guard comprises a casting 12, having a projecting pin 12 and adownwardly-extending arm 12, which is upset around the lower edge of thebeam-flange to clamp the castings to the flange. An eye 13 to receivethe safety-chain is formed integrally with the casting, as is also arivet 14, which extends through and is spread beneath the web of thebeam.

All parts above described are preferably cast or formed of malleablemetal, so that they may be swaged and upset, as indicated. The mortiseand tenons fit snug, so that considerable force is necessary in puttingthe parts together. The joints formed will not readily loosen. Therivets are shown as formed integrally with the fulcrum and wheel-guard;but ordinary. rivets may be used, if desired.

What I claim is- 1. The combination with a brake-beam, of a fulcrumformed of two parts held together by swaging over the beam.

2. The combination with a brake-beam, of a fulcrum formed of separateparts having interlocking members swaged over the beam.

3. The combination with a flanged beam, of a fulcrum comprising twoparts each having a dovetail tenon extending through a mortise adjacentthe beam and clenched over the edge of the beam-flange.

4. The combination with a brake-beam, of a two-part fulcrum, one ofwhich has an integral rivet extending through the web of the beam andthe other part of the fulcrum.

5. A fulcrum comprising two parts united by a dovetailed joint and arivet integral with one part.

6. A fulcrum comprising two parts each of which has a dovetail tenonextending through the other part and upset to clench the parts together.

7. The combination with a brake-beam, of a wheel-guard and chain-eyeformed in one piece and swaged to the beam-flange.

8. The combination with a brake-beam, of a wheel-guard and chain-eyeformed in one piece with a face-plate extending down the face of flangeand turning over the lower edge of the flange.

9. The combination with 'a brake-beam, of a wheel-guard casting swagedto the beamflange and havinga chain-eye formed therein.

10. The combination with a brake-beam, of a Wheel-guard casting, havinga chain-eye formed therein, riveted to the beam-web and swaged to thebeam-flange.

11. A one-piece, uncut, cambered brakebeam having a web provided withflanges at each edge projecting laterally in both directions, the endportions of the flanges being parallel, and brake parts embracing theflanges on both sides and riveted to the web.

12. An uncut brake-beam flanged at each edge, one edge being straightand the other segmental except at the ends, where the edges areparallel, and having rivet-holes in the web for attachment of similarfulcrum and other brake parts on either side, substantially asdescribed.

18. A segmental uncut I brake-beam so formed that the brake parts can bemounted on either side of the beam without change of pattern.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE E. F. COOPER.

Witnesses:

AARON BRYANT, SAML. MOORE.

